Astronomical phenomena
By: prepared jointly by the Nautical Almanac Office, United States Naval Observatory and Her Majesty's Nautical AlmanacOffice, Royal Greenwich Observatory.
Contributors: United States Naval Observatory. Nautical Almanac Office.; Royal Greenwich Observatory. Nautical Almanac Office.
Publisher: U.S. Government Printing Office; H.M.S.O.
Published: 1981
Place of publication: Washington; London
Language: eng